Growth Stage Models List, and Single Model Detail

Deprecating: Please note this API is being deprecated and will be removed from service by January 15, 2016. Please begin switching to our new Version-2 API Platform.

All plants require a certain amount of heat to develop. These heat units are referred to as Growing Degree Days (GDDs) or Growing Degree Units. Moreover, plant development is broken up into stages, where each stage may require a different type of activity in the field. Stages are calculated based on the number of GDDs that have accumulated since the crop was planted.

The Growth Stage Models API can calculate the current estimated growth stage for a particular crop, as well as provide information about the upcoming stage. There are models available for a number of crops and crop varieties, and have been sourced from reputable scientific sources and vetted by aWhere's own science team.

This API returns a list of the available models, the crop and variety each is for, and the source for that model. Each model has an ID and that ID can be used to retrieve a single model's detail, rather than retrieve and parse the entire list.

On This Page...

About the Available Models

The current generation of growth stage models are sourced from leading universities and extensions, industry- specific science organizations, and aWhere's agronomic scientists based on published literature. Each model has been vetted by our science team as well as in everyday use by farmers, and the original source of the model is included in the model information.

Selecting a model depends on crop variety and each farmer's preferred model or source. Though extension offices tend to tune their models to their geographic area, there is not a restriction on where models may be effective. Your application may select a particular one for your customers based on crop and location, or offer an interface to allow customers to choose their preferred model.

API Request

API Endpoints

HTTP Verbs and URIs

Parameters

The model ID, which is retrievable from the list of all models. This is also used in the results API.

String value provided by the list of models.

Query String Parameters

Query Parameter Name

Description

Valid Values

properties

Optimize the size of the payload by limiting the amount of data that is returned. Only the properties specified will be included in the response payload. Include multiple properties by separating the names with a comma. Note that id and _links are always included.

namecropcropVarietysourcetype

crop

Limit the result set to the models that apply to a particular crop type. These values can be derived from the values in an unfiltered response, but at time of writing include the options to the right. The list can be filtered to only one crop at a time.